21970116

素因数分解:

$2^2\times 3^5\times 7^1\times {\mathrm{3229}}^1$

素因数の和:3255

約数の個数: 72

約数和(自身を含む): 65840320

約数和(自身を除く): 43870204

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 81, 84, 108, 126, 162, 189, 243, 252, 324, 378, 486, 567, 756, 972, 1134, 1701, 2268, 3229, 3402, 6458, 6804, 9687, 12916, 19374, 22603, 29061, 38748, 45206, 58122, 67809, 87183, 90412, 116244, 135618, 174366, 203427, 261549, 271236, 348732, 406854, 523098, 610281, 784647, 813708, 1046196, 1220562, 1569294, 1830843, 2441124, 3138588, 3661686, 5492529, 7323372, 10985058, 21970116]

約数ペア:

[(1, 21970116), (2, 10985058), (3, 7323372), (4, 5492529), (6, 3661686), (7, 3138588), (9, 2441124), (12, 1830843), (14, 1569294), (18, 1220562), (21, 1046196), (27, 813708), (28, 784647), (36, 610281), (42, 523098), (54, 406854), (63, 348732), (81, 271236), (84, 261549), (108, 203427), (126, 174366), (162, 135618), (189, 116244), (243, 90412), (252, 87183), (324, 67809), (378, 58122), (486, 45206), (567, 38748), (756, 29061), (972, 22603), (1134, 19374), (1701, 12916), (2268, 9687), (3229, 6804), (3402, 6458)]